Which of these statements is not a valid reason for the depletion of flora and fauna?

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Agricultural expansion

Large-scale developmental projects

Grazing and fuel wood collection

Creation of National Parks and Biosphere Reserves

answer is D.

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Detailed Solution

Creation of National Parks and Biosphere Reserves are not valid reasons for the depletion of flora and fauna.
Creating such entities ensures the preservation of plant and animal species. Depleting flora and fauna creates an imbalance in the ecosystem that can have a long-term and widespread impact.
1)      Agricultural Expansion- with the increasing population, there is increasing demand for agricultural land to feed them. This has led to deforestation and the destruction of the rich and diverse flora and fauna.
2)      Large-scale development projects, like dams, industries, etc., require a large area. This again leads to deforestation and the submergence of large areas under the dam projects. The dams threaten the rich aquatic life.
3)      Grazing and fuel wood collection- The villagers and local communities depend on forests for fuel wood, forest products like wildflowers, fruits, etc., and grazing cattle. The overconsumption, exploitation of the forest produce, and overgrazing by the cattle also threaten flora and fauna.

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